研究生: |
張簡宗德 |
---|---|
論文名稱: |
含十五族(銻,鉍)與過渡金屬(鉬,鎢)團簇化合物之合成與系統性研究 |
指導教授: |
謝明惠
Shieh, Ming-Huey |
學位類別: |
碩士 Master |
系所名稱: |
化學系 Department of Chemistry |
論文出版年: | 2004 |
畢業學年度: | 92 |
語文別: | 中文 |
論文頁數: | 126 |
中文關鍵詞: | 四面體 、橋接氯、溴 、甲醇基 |
英文關鍵詞: | tetrahedral, halide-bridged, alkoxy groups |
論文種類: | 學術論文 |
相關次數: | 點閱:147 下載:0 |
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中文摘要
[1] Sb-Mo-X (X = Cl、Br、I) / ethyleneglycol的系統
將NaSbO3、Mo(CO)6 分別與鹽類 PPNCl、PPh4Br 於混合ethyleneglycol及hexane的溶液中加熱迴流反應,分別可生成以四面體為主結構,橋接氯、溴的產物 [PPN]2[(CO)5MoSbMo3(CO)9(μ-Cl)3]
和 [PPh4]2[(CO)5MoSbMo3(CO)9(μ-Br)3]。而當反應鹽類為 PPh4I 時,則為單核性產物 [PPh4]2[Mo(CO)4I2]。由結果中可以發現,這些鹽類不僅是陽離子的來源,也是鹵素來源的提供者。
[2] Sb-M (M = Mo,W) / MeOH的系統
將NaSbO3、Mo(CO)6分別與W(CO)6、PPNCl或PPh4Br在MeOH中加熱迴流反應,可以生成一系列含第十五族銻與第六族過渡金屬鉬、鎢的產物 [(CO)5WSbW4(CO)12(μ3-OMe)3]2-、[(CO)5MoSbMo4(CO)9 -Cl3(μ3-OMe)3]2-或 [(CO)5MoSbMo4(CO)12(μ3-OMe)3]2-。而這三個化合物都是以SbM3 (M = Mo, W)為主的四面體結構產物,並且橋接三個甲醇基的片段來連結金屬(M = Mo, W)。
[3] Bi-Mo / methoxyethanol的系統
將 NaBiO3 與Mo(CO)6於 methoxyethanol中加熱迴流反應,可生成以四面體為主結構的化合物 [BiMo3(CO)9(μ-OC2H4OMe)3Na]-,由結構中我們可發現有鈉離子鉗在其中。將此化合物與LiCl在室溫反應,可得到含Li的產物 [BiMo3(CO)9(μ-OC2H4OMe)3Li]-,顯示了此化合物具有捕捉離子的性質存在。然而[BiMo3(CO)9(μ-OC2H4OMe)3Na]-與 KCl反應卻無法得到含有鉀離子的產物,可能是鉀離子size太大所造成。
Abstract
[1] Sb-Mo-X (X = Cl, Br, I) / ethyleneglycol system
When NaSbO3 and Mo(CO)6 were treated with PPNCl or PPh4Br in refluxing ethyleneglycol / hexane solutions, the halide-bridged tetrahedral compounds [PPN]2[(CO)5MoSbMo3(CO)9(μ-Cl)3] and [PPh4]2[(CO)5Mo- SbMo3(CO)9(μ-Br)3] were obtained, respectively. However, when PPh4I was employed, the mononuclear complex [PPh4]2[Mo(CO)4I2] was yielded. The results indicate the salts can not only provide their cations but also their anions to stabilize the resultant specise.
[2] Sb-M (M = Mo,W) / MeOH system
When NaSbO3 and Mo(CO)6 were treated with W(CO)6, PPNCl or PPh4Br in refluxing MeOH, the tetrahedron-based antimony-containing methoxide complexes [(CO)5WSbW4(CO)12(μ3-OMe)3]2-, [(CO)5MoSb- Mo4(CO)9Cl3(μ3-OMe)3]2-, and [(CO)5MoSbMo4(CO)12(μ3-OMe)3]2- were produced, respectively. Basically, These compounds each exhibit a SbM3 (M = Mo, W) core geometry with three bridging alkoxy ligands.
[3] Bi-Mo / methoxyethanol system
If NaBiO3 and Mo(CO)6 were refluxed in methoxyethanol solution, the novel compound [BiMo3(CO)9(μ-OC2H4OMe)3Na]- was afforded, in which the sodium ion is trapped inside the cavity surrounded by three alkoxy groups. When [BiMo3(CO)9(μ-OC2H4OMe)3Na]- reacts with LiCl at room temperature, the ion exchange occurred to form [BiMo3(CO)9- (μ-OC2H4OMe)3Li]-. However, the ion exchange reaction of [BiMo3- (CO)9(μ-OC2H4OMe)3Na]- with K+ was not observed probably due to the size effect.
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